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于2013年对南黄海西部海域25个站位表层沉积物中多环芳烃(PAHs)进行了测定。结果表明,16种美国EPA优先控制PAHs在大部分样品中均有检出,PAHs总量水平为19.8~172μg/kg(干重),平均含量为67.2μg/kg。沉积物中PAHs与TOC、粒度有明显的线性相关关系。与国内外其它海区相比,调查海域PAHs总体处于低污染水平。表层沉积物中PAHs主要来源于木柴、煤炭燃烧,也有部分样品显示石油源。利用沉积物质量基准法(SQGs)评价了调查海域沉积物的生态风险,调查海域沉积物中PAHs处于较低生态风险水平。
In 2013, polycyclic aromatic hydrocarbons (PAHs) in surface sediments at 25 stations in the western South Yellow Sea were measured. The results showed that PAHs were detected preferentially in most of the 16 U.S. EPA-controlled PAHs, with a total PAHs level of 19.8-172 μg / kg (dry weight) and an average level of 67.2 μg / kg. There was a clear linear correlation between PAHs and TOC and particle size in sediments. Compared with other sea areas at home and abroad, PAHs in the surveyed waters are generally at a low level of pollution. PAHs in surface sediments mainly come from firewood and coal, and some samples show petroleum sources. The ecological risk of sediment in the surveyed sea area was evaluated by SQGs, and the PAHs in the sediment of the surveyed sea area was at a low level of ecological risk.